diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 94dc3db3942d..4e34446d2792 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -181,7 +181,7 @@ jobs:
         run: yarn build
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: build-output
           path: ${{ env.CACHED_BUILD_PATHS }}
@@ -386,7 +386,7 @@ jobs:
         run: yarn build:tarball
 
       - name: Archive artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ github.sha }}
           retention-days: 90
@@ -629,7 +629,7 @@ jobs:
           format(' --shard={0}/{1}', matrix.shard, matrix.shards) || '' }}
 
       - name: Upload Playwright Traces
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name:
@@ -692,7 +692,7 @@ jobs:
           yarn test:loader
 
       - name: Upload Playwright Traces
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name: playwright-traces-job_browser_loader_tests-${{ matrix.bundle}}
@@ -1009,7 +1009,7 @@ jobs:
           SENTRY_E2E_WORKSPACE_ROOT: ${{ github.workspace }}
 
       - name: Upload Playwright Traces
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name: playwright-traces-job_e2e_playwright_tests-${{ matrix.test-application}}
@@ -1023,7 +1023,7 @@ jobs:
           node ./scripts/normalize-e2e-test-dump-transaction-events.js
 
       - name: Upload E2E Test Event Dumps
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name: E2E Test Dump (${{ matrix.label || matrix.test-application }})
@@ -1135,7 +1135,7 @@ jobs:
           node ./scripts/normalize-e2e-test-dump-transaction-events.js
 
       - name: Upload E2E Test Event Dumps
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name: E2E Test Dump (${{ matrix.label || matrix.test-application }})
diff --git a/.github/workflows/flaky-test-detector.yml b/.github/workflows/flaky-test-detector.yml
index bb3169ecb410..580fcd644216 100644
--- a/.github/workflows/flaky-test-detector.yml
+++ b/.github/workflows/flaky-test-detector.yml
@@ -71,7 +71,7 @@ jobs:
           TEST_RUN_COUNT: 'AUTO'
 
       - name: Upload Playwright Traces
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure() && steps.test.outcome == 'failure'
         with:
           name: playwright-test-results